3061799921 has 2 divisors, whose sum is σ = 3061799922. Its totient is φ = 3061799920.

The previous prime is 3061799911. The next prime is 3061799941. The reversal of 3061799921 is 1299971603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3049800625 + 11999296 = 55225^2 + 3464^2 .

It is a cyclic number.

It is not a de Polignac number, because 3061799921 - 2⁶ = 3061799857 is a prime.

It is not a weakly prime, because it can be changed into another prime (3061799911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1530899960 + 1530899961.

It is an arithmetic number, because the mean of its divisors is an integer number (1530899961).

Almost surely, 2^3061799921 is an apocalyptic number.

It is an amenable number.

3061799921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3061799921 is an equidigital number, since it uses as much as digits as its factorization.

3061799921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 3061799921 is about 55333.5334223290. The cubic root of 3061799921 is about 1452.0857689333.

The spelling of 3061799921 in words is "three billion, sixty-one million, seven hundred ninety-nine thousand, nine hundred twenty-one".